Wilkerson X25 User Manual

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Richland, MI 49083 Tel: [phone]

WARNING

To avoid unpredictable system behavior that can cause personal injury
and property damage:

• Disconnect electrical supply (when necessary) before installation,
servicing, or conversion.

• Disconnect air supply and depressurize all air lines connected to this
product before installation, servicing, or conversion.

• Operate within the manufacturer’s specified pressure, temperature,
and other conditions listed in these instructions.

• Medium must be moisture-free if ambient temperature is below
freezing.

• Service according to procedures listed in these instructions.

• Installation, service, and conversion of these products must be
performed by knowledgeable personnel who un derstand how
pneumatic products are to be applied.

• After installation, servicing, or conversion, air and electrical supplies
(when necessary) should be connected and the product tested for
proper function and leakage. If audible leakage is present, or the
product does not operate properly, do not put into use.

• Warnings and specifications on the product should not be covered by
paint, etc. If masking is not possible, contact your local representative
for replacement labels.

Safety Guide

For more complete information on recommended application guidelines, see the
Safety Guide section of Pneumatic Division catalogs or you can download the

Pneumatic Division Safety Guide at: www.wilkersoncorp.com

Description

Wilkerson Manual Dryers are intended to remove water vapor from the
compressed air system. Atmospheric dew points as low as -100°F (­73°C) are achievable when operated within rated unit specifications.

General Safety Information

•

Release all air pressure from intended airline before installation.

• Install unit in air line before opening desiccant container. After unit
installation, add desiccant following steps in desiccant replacement
instructions on page 2.

• Always make sure bowl, bowl guard, and clamp ring are in place
and the clamp ring is securely locked before pressurization.

• DO NOT exceed the pressure and temperature ratings as shown in
the specifications.

• Follow all local, state and
federal EPA, OSHA, and
similar codes regarding
disposal of old desiccant.

Installation & Service Instructions
83-050-000

Manual Desiccant Dryer Models
X06, X03, X04, and X25 with
Variations and Accessories

ISSUED: April, 2013
Supersedes: April, 2007

Doc. #83050000, EN #130200, Rev. 4

Installation

1. Refer to WARNING (on page 6).

2.

Install as close as possible to the point where the air is being used.

3.

Install unit with the airflow going in the direction of the arrow. For the
X04, install with airflow entering at the bottom center port of the 4-way
valve and exiting at the center port of the shuttle valve.

4. Install unit on air line before opening desiccant container. After
installation, add desiccant. Shake and tap bowl while filling to settle
desiccant. Fill Model X25 and X03/X04 to 1/8" below inner shoulder
of bowl. Fill Model X06 bowl to within 1/2" of top.

5. Replace bowl and bowl guard, or metal bowl, and clamp ring onto
the unit. Be sure clamp ring is securely locked in place before
pressurizing unit.

6.

Most manual desiccant dryer users will achieve optimal results when
installing the dryer as close to the equipment or process being protected
as possible in the compressed air system. Most users, especially those
with high quality air requirements, should protect their system and the
manual dryer with one or more of the following types of components:

Please see page 4 for exact model recommendations.

•

Liquid Separator: Should be used prior to the manual desiccant

dryer in any system where large slugs of liquid water are anticipated.
The manual desiccant dryer silica gel or mole sieve can be destroyed
by large amounts of liquid moisture. Most systems which have an
aftercooler and separator, and/or a refrigerated air dryer, will not
require a liquid separator. An alternative is to use a particulate filter/
separator, described below.

• Particulate Filter/Separator: Should be used prior to the manual

desiccant dryer in any system where significant amounts of dirt,
pipe scale, etc, and/or liquid water, is present, in order to prevent
clogging the manual dryer or harming the desiccant. A particulate

filter/separator should be used prior to a coalescing filter to extend
the life of the coalescing element.

Specifications X06 X03 Plastic Bowl X03 Metal Bowl X04 X25 Metal Bowl

Maximum Pressure 150 psig (10.3 bar) 150 psig (10.3 bar) 150 psig (10.3 bar) 150 psig (10.3 bar) 150 psig (10.3 bar)

Maximum Temperature 125°F (52°C) 125°F (52°C) 150°F (66°C) 125°F (52°C) 150°F (66°C)

Atmospheric Dewpoint*
000 Model: Silica Gel
U00 Model: 4A Molecular
Sieve

Maximum Continuous Airflow* 5 scfm (2.3 dm

Total Airflow* 600 scf (283 dm3) 4400 scf (2076 dm3) 4400 scf (2076 dm3) 4400x2 scf (2076x2 dm3) 11,000 scf (5191 dm3)

Total Min. of Operation @
Max Continuous Airflow

Unit Weight With Desiccant 1.13 lbs. (0.51 kg) 7.4 lbs. (3.4 kg) 6.8 lbs. (3.1 kg) 15.0 lbs. (6.8 kg) 11.2 lbs. (5.1 kg)

# of Desiccant Bags/Charge 1 Bag ** 2 Bags *** 2 Bags*** 4 Bags*** 5 Bags***

Pipe Connections 1/4" NPT (BSPP) 1/4", 1/2" NPT (BSPP) 1/4", 1/2" NPT (BSPP) 1/4", 1/2" NPT (BSPP) 1/2" NPT (BSPP)

*With Dry Desiccant at 100 psig (7 bar) and 70°F (21°C)
** Each bag weighs .25 lbs. (.11kg)
*** Each bag weighs .88 lbs. (.40kg)

000 Model:

-45°F (-43°C)
U00 Model:

-100°F (-73°C)

3

/s) 10 scfm (4,7 dm3/s) 10 scfm (4.7 dm3/s) 10 scfm (4.7 dm3/s) 25 scfm (11.8 dm3/s)

120 min. 440 min. 440 min. 880 min. 440 min.

000 Model:

-45°F (-43°C)
U00 Model:

-100°F (-73°C)

M00 Model:

-45°F (-43°C)
MU0 Model:

-100°F (-73°C)

000 Model:

-45°F (-43°C)
U00 Model:

-100°F (-73°C)

000 Model:

-45°F (-43°C)
U00 Model:

-100°F (-73°C)

Models X06, X03, X04, and X25

!

!

• Coalescing Filter: Should be used prior to the manual desiccant

dryer in any lubricated compressor system which does not utilize
a system coalescing filter. The coalescing filter removes oil from
the compressed air, which prevents the oil from coating the
silica gel or mole sieve and destroying its ability to dry the air.
Oil contaminated desiccant must be replaced and disposed of
properly, as it cannot be regenerated.

• Afterfilter: Should be used after the manual desiccant dryer
in any system where any amount of desiccant dust, however
insignificant, is undesirable. The afterfilter prevents the very
slight desiccant dusting, which occurs over time, from proceeding
downstream into the compressed air system.

• Pre-Dryers: Both the silica gel and mole sieve manual desiccant
dryers can have their drying lives extended through the use of a
pre-dryer. The silica gel (“000”/“M00”) models will typically last
over three times as long if a refrigerated air dryer is placed in the
compressed air system prior to it. (A plant air system refrigerated
dryer will provide the same extended life.) The mole sieve (“U00”/
“MU0”) models will typically last three times as long if a silica gel
(“000”/“M00”) model dryer installed prior to the mole sieve dryer.
(A plant air system desiccant dryer will provide the same extended
life.) Users of either type of manual desiccant dryer who expect
a high air flow demand may wish to consider using a pre-dryer.

Please see page 4 for exact model recommendations.

Operation

1. The silica gel desiccant, when visible through the clear
polycarbonate plastic bowl, contains a color indicator. It changes
from Blue (meaning dry) to Pink (meaning wet) to indicate the need
to replace or regenerate the desiccant. (An X05-02-000 moisture
indicator can be used with 4A molecular sieve units to perform the
same function.) On units with metal bowls, a moisture indicator
mounted on the cover performs the same color changing function.

2. The 4A molecular sieve does not change color. For moisture
indication an X05-02-000 is recommended. See page 4.

3. Environment friendly disiccant changes color from yellow/orange
(meaning dry) to dark green (meaning wet).

3. By installing two or more units in parallel, higher dry airflows can be
achieved.

Maintenance

1. The only servicing required for silica gel units is when the desiccant
color or moisture indicator has changed from Blue (meaning dry) to
Pink (meaning wet). Should this color change occur:

a. Turn off and depressurize the line containing the dryer unit.
b. Loosen the clamp ring and remove the bowl from the top housing.

(Figure 1) Proceed to step 2 or 3, as required.

2. Desiccant replacement:

a. Pour out used desiccant.
b. Open new container and refill bowl. (Figure 2)
c.

Shake or tap bowl to settle desiccant. Add or remove sufficient
quantity to fill Model X03 and X25 unit bowl to 1/8" below inner
step, and for Model X06 fill bowl to within 1/2" of the top. (Figure 3)

d. See replacement parts list for specifics on kit numbers for

replacement desiccant.

3. Desiccant regeneration:
a. — For silica gel (“000”) units: Pour out used Pink desiccant

onto flat pan. Place Pink desiccant in 350°F (176°C) oven for
approximately three hours or until the desiccant color has
changed back to Blue.

— For 13x molecular sieve (“X00”) units cannot be

regenerated. See page 5 for replacement kits.

— For 4A molecular sieve (“U00”) units: Pour out used

desiccant onto flat pan. Place desiccant in 600°F (316°C)
oven for up to a maximum of 3 hours.

b. Remove desiccant from oven and allow to cool down to ambient

temperature.

c. Pour desiccant back into unit bowl, periodically shaking and

tapping to settle the desiccant.

4. Replace bowl and bowl guard, or metal bowl, and clamp ring onto
the unit. Be sure clamp ring is securely locked in place before
repressurizing the unit.

CAUTION

Polycarbonate bowls, being transparent and tough, are ideal for use with Filters
and Lubricators. They are suitable for use in normal industrial environments, but
should not be located in areas where they could be subjected to direct sunlight,
an impact blow, nor temperatures outside of the rated range. As with most
plastics, some chemicals can cause damage. Polycarbonate bowls should not
be exposed to chlorinated hydrocarbons, ketones, esters and certain alcohols.
They should not be used in air systems where compressors are lubricated with
fire-resistant fluids such as phosphate ester and di-ester types.

Metal bowls are recommended where ambient and/or media conditions are
not compatible with polycarbonate bowls. Metal bowls resist the action of most
such solvents, but should not be used where strong acids or bases are present
or in salt laden atmospheres. Consult the factory for specific recommendations
where these conditions exist.

TO CLEAN POLYCARBONATE BOWLS USE MILD SOAP AND WATER
ONLY! DO NOT use cleansing agents such as acetone, benzene, carbon

tetrachloride, gasoline, toluene, etc., which are damaging to this plastic.

Bowl guards are recommended for added protection of polycarbonate bowls where
chemical attack may occur.

FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE
PRODUCTS AND/OR SYSTEMS DESCRIBED HEREIN OR RELATED ITEMS
CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE.

This document and other information from The Company, its subsidiaries
and authorized distributors provide product and/or system options for further
investigation by users having technical expertise. It is important that you analyze
all aspects of your application, including consequences of any failure and review
the information concerning the product or systems in the current product catalog.
Due to the variety of operating conditions and applications for these products
or systems, the user, through its own analysis and testing, is solely responsible
for making the final selection of the products and systems and assuring that all
performance, safety and warning requirements of the application are met.

The products described herein, including without limitation, product features,
specifications, designs, availability and pricing, are subject to change by The
Company and its subsidiaries at any time without notice.

EXTRA COPIES OF THESE INSTRUCTIONS ARE AVAILABLE FOR INCLUSION
IN EQUIPMENT / MAINTENANCE MANUALS THAT UTILIZE THESE PRODUCTS.
CONTACT YOUR LOCAL REPRESENTATIVE.

WARNING

Figure 1

X03 / X04 / X25

Figure 2

Keep
Covered

1/8"

Bowl

Clamp
Ring

Figure 3

Inner
Step

X03 / X04 / X25

2